This paper presents a comprehensive review of the state of the art in composite cold-formed steel flooring research over the past couple of years. The most relevant and significant literature references were reviewed to provide some insights into trends and developments in composite cold-formed steel floors. Advantages of this type of composite flooring system are also highlighted. A broad description of mainly two types of composite floor - mainly consisting of cold-formed steel and concrete, and cold-formed steel and timber-based floorboards - are outlined in this study. The experimental and numerical investigations that have been carried out worldwide are likewise discussed in the paper. The most important aspects covered are shear connection behaviour and the flexural and dynamic behaviour of the floors. There is also a brief description of fire testing.
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